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KMID : 0386720110230020000
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Journal of the Korean Hip Society
2011 Volume.23 No. 2 p.0 ~ p.0
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Dislocation as a Complication after Total Hip Arthroplasty
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Kim Jun-Shik
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Abstract
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The prevalence of reoperation due to dislocation after total hip arthroplasty ranks high because of aseptic loosening, periprosthetic fracture and infection. Dislocation occurs in 0.5% to 4% of the cases in a year after primary total hip arthroplasty. The risk of dislocation is influenced by the position of the components, the surgical approach, the surgical techniques, the design of the prosthesis, the underlying diagnosis and the patient’s compliance with restrictions. A better understanding of the etiology of dislocation and refinements of surgical techniques have led to a decrease in the rate of dislocation over time. Although most dislocations after total hip arthroplasty are a single episode that can be managed nonoperatively, some patients require surgical intervention to treat recurrent dislocation. The choice of surgical technique to manage recurrent dislocation depends on the etiology of the problem. The surgical options available for the treatment of recurrent dislocation consist of component revision, modular component exchange, use of a larger femoral head, soft issue reinforcement, advancement of the greater trochanter, bipolar arthroplasty and use of a constrained liner.
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KEYWORD
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Dislocation, Total hip arthroplasty
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